An uncommon decorative map of the British Isles engraved and originally issued by Pieter van den Keere in 1604, the geography of which was based on the Ortelius version from his “Theatrum” atlas. According to Shirley, the plate was then sold on to Jansson, who changed the inscription by inserting his name and “anno” 1621, the date of his initial issuance and he also included the map in his “Atlantis Maioris Appendix” atlas in 1630 and 1631. The map is finely decorated with the Stuart coat of arms, sailing ships, mythological creatures, strap-work cartouches and portraits of James I, his wife Anne of Denmark and his son Henry, Prince of Wales. Blank verso. Other than repairs to a short bottom centrefold split and another along the plate mark in the left margin, neither of which affects the image, a strong dark impression in excellent condition. 34.5 cm x 50 cm